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Finding the Fourth Proportional to 245,273.12, 338,484.88 and 137,863.84

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Solution

The fourth proportional to 245,273.12, 338,484.88 and 137,863.84 is: 190,256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,273.12 : 338,484.88 = 137,863.84 : x
  2. Step 2: Convert to fraction form
    245,273.12/338,484.88 = 137,863.84/x
  3. Step 3: Cross multiply
    245,273.12x = 338,484.88 × 137,863.84
  4. Step 4: Simplify right side
    245,273.12x = 46,664,825,338.74
  5. Step 5: Solve for x
    x = 46,664,825,338.74/245,273.12
  6. Step 6: Final answer
    x = 190,256.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.